Protective cap for a respirator&#39;s replaceable filter



FIG. 1 is a front elevational view of a protective cap for a respirator's replaceable filter showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a front perspective view thereof; and

FIG. 8 is a half-sectional view of FIG. 7, it being understood that a half of the protective cap has been shown broken away for clarity of illustration. 

The ornamental design for a protective cap for a respirator's replaceable filter, as shown and described. 